I get a facewasher cloth (some call it a flannel) wet it then squeez excess water out.
Put a dot of dish-liquid on wet come cloth, now wipe and scrub mirror with it.
Now rinse cloth clean, squeeze excess out and again wipe mirror. Finish with white vinegar on a dry clean face washer and wipe over mirror to take streaks off.
I never need the vinegar as im left without streaks.
Some glass cleaners seem to have an oily/detergent substance in them which may clean off with hot water. I also tried glass cleaner on our car windscreen and was not impressed with the results. I would try a combination of white vinegar and water and dry it thoroughly. Beware that if you use toothpaste remove it quickly, but gently with either paper towel or a soft duster as it is abrasive. There is/was a product called rain aid is/was in car washers under the bonnets. It don’t know if it would work on mirrors.
I was thinking about this question today, because at the end of a survey I completed in Internet, this message appeared.
“Did you know toothpaste can de-fog bathroom mirrors? Readers Digest says coating a mirror with non-gel toothpaste and wiping it clean with a cloth prevents mirrors steaming up.”
As silly as it sounds, as a kid I remember using cheap no frills brand flyspray on the bathroom mirror and wiping it off with toilet paper, lol. It worked a treat – the mirror didn’t fog up each morning and it also kept away all the annoying bugs that hung around the flouro light.
Vinegar should be the answer for you. Works really well…..just water a bit of white vinegar down and try that if not, go 100% vinegar and use it with paper towel or newspaper.
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